<?php

/**
 * Zend Framework
 *
 * LICENSE
 *
 * This source file is subject to the new BSD license that is bundled
 * with this package in the file LICENSE.txt.
 * It is also available through the world-wide-web at this URL:
 * http://framework.zend.com/license/new-bsd
 * If you did not receive a copy of the license and are unable to
 * obtain it through the world-wide-web, please send an email
 * to license@zend.com so we can send you a copy immediately.
 *
 * @category   Zend
 * @package    Zend_Gdata
 * @subpackage Gdata
 * @copyright  Copyright (c) 2005-2011 Zend Technologies USA Inc. (http://www.zend.com)
 * @license    http://framework.zend.com/license/new-bsd     New BSD License
 * @version    $Id: Entry.php 23775 2011-03-01 17:25:24Z ralph $
 */

/**
 * @see Zend_Gdata
 */
require_once 'Zend/Gdata.php';

/**
 * @see Zend_Gdata_App_MediaEntry
 */
require_once 'Zend/Gdata/App/MediaEntry.php';

/**
 * Represents the Gdata flavor of an Atom entry
 *
 * @category   Zend
 * @package    Zend_Gdata
 * @subpackage Gdata
 * @copyright  Copyright (c) 2005-2011 Zend Technologies USA Inc. (http://www.zend.com)
 * @license    http://framework.zend.com/license/new-bsd     New BSD License
 */
class Zend_Gdata_Entry extends Zend_Gdata_App_MediaEntry {
	
	protected $_entryClassName = 'Zend_Gdata_Entry';
	
	public function __construct($element = null) {
		$this->registerAllNamespaces ( Zend_Gdata::$namespaces );
		parent::__construct ( $element );
	}
	
	public function getDOM($doc = null, $majorVersion = 1, $minorVersion = null) {
		$element = parent::getDOM ( $doc, $majorVersion, $minorVersion );
		// ETags are special. We only support them in protocol >= 2.X.
		// This will be duplicated by the HTTP ETag header.
		if ($majorVersion >= 2) {
			if ($this->_etag != null) {
				$element->setAttributeNS ( $this->lookupNamespace ( 'gd' ), 'gd:etag', $this->_etag );
			}
		}
		return $element;
	}
	
	protected function takeChildFromDOM($child) {
		$absoluteNodeName = $child->namespaceURI . ':' . $child->localName;
		switch ($absoluteNodeName) {
			case $this->lookupNamespace ( 'atom' ) . ':' . 'content' :
				$content = new Zend_Gdata_App_Extension_Content ();
				$content->transferFromDOM ( $child );
				$this->_content = $content;
				break;
			case $this->lookupNamespace ( 'atom' ) . ':' . 'published' :
				$published = new Zend_Gdata_App_Extension_Published ();
				$published->transferFromDOM ( $child );
				$this->_published = $published;
				break;
			case $this->lookupNamespace ( 'atom' ) . ':' . 'source' :
				$source = new Zend_Gdata_App_Extension_Source ();
				$source->transferFromDOM ( $child );
				$this->_source = $source;
				break;
			case $this->lookupNamespace ( 'atom' ) . ':' . 'summary' :
				$summary = new Zend_Gdata_App_Extension_Summary ();
				$summary->transferFromDOM ( $child );
				$this->_summary = $summary;
				break;
			case $this->lookupNamespace ( 'app' ) . ':' . 'control' :
				$control = new Zend_Gdata_App_Extension_Control ();
				$control->transferFromDOM ( $child );
				$this->_control = $control;
				break;
			default :
				parent::takeChildFromDOM ( $child );
				break;
		}
	}
	
	/**
	 * Given a DOMNode representing an attribute, tries to map the data into
	 * instance members.  If no mapping is defined, the name and value are
	 * stored in an array.
	 *
	 * @param DOMNode $attribute The DOMNode attribute needed to be handled
	 */
	protected function takeAttributeFromDOM($attribute) {
		switch ($attribute->localName) {
			case 'etag' :
				// ETags are special, since they can be conveyed by either the
				// HTTP ETag header or as an XML attribute.
				$etag = $attribute->nodeValue;
				if ($this->_etag === null) {
					$this->_etag = $etag;
				} elseif ($this->_etag != $etag) {
					require_once ('Zend/Gdata/App/IOException.php');
					throw new Zend_Gdata_App_IOException ( "ETag mismatch" );
				}
				break;
			default :
				parent::takeAttributeFromDOM ( $attribute );
				break;
		}
	}

}
